Accfly 2.7" HD Dash Cam Car Camcorder DVR Video Recorder Dash-Cam Dual Camera Front Driving Recorder Car DVR GPS Logger G-Sensor (dash cam) Accfly Car Blackbox DVR Dash cam with Dual Cameras Lens Video Recording - Front & Inside the car ,Uninterrupted Continuous Video Recording , Cycling Recording function Loop recording feature. Set it and forget it. With loop recording enabled, users will have the option to record videos in loops of 1, 3, or 5minute video files. Accfly dash camera for car will record these files one by one onto the SD card until it runs out of space. Then, the camera will start from the first files recorded, and delete the files from oldest to newest, one by one. Automotive turning on and recording function when the vehicle start. Built-in 1/4 inch low-noise and high-quality photographic element can capture ultra clear picture in a dark place. Accfly Car DVR Dashcam built-in microphone/speaker and lithium battery with charging and meanwhile recording function. Gravity induced SENSOR, allowing this Accfly car DVR Dashcam to detect and record any sudden motion or speed changes in X, Y and Z axis meaning as soon as any sharp braking, rapid acceleration, excessive cornering or sudden impact occurs. Accfly Car Dash Cameras Support GPS Module - letting you open up Google Maps and you can instantly see your vehicle's driving track, speed, time, and date which insurance companies love to have. NOTE: System requirement: Windows 2000/XP/Vista/Windows 7, NOT SUPPORT WINDOWS 10 and MAC.